I purchased the Infinitum Desulfator 8 years ago in September 2006 to reduce the operational cost of my diesel van which I use as a commercial transport vehicle. To my amazement, my N70Z battery increased in lifespan to more than 3 years. I only got about 1 year from them previously. With one battery costing $100, over the years I've already saved about $370 after deducting the cost of the device. Furthermore, I will continue to save throughout the service life of the desulfator!

I'm using the Infinitum Desulfator now on my Ford with a wet battery I purchased in October 2011 and the life span has already tripled, given the usual 1 year life span.

I'm so convinced with this technology, I've purchased another one for my new van.